baber/WOPTO huggingface dataset:
Patent GB-1256913-A (GB)
IPC: C07C2/36
Filed: 1969-01-30
Abstract: 1,256,913. Oligomerization catalysts. B.P. CHEMICAL Ltd. 16 Jan., 1970 [30 Jan., 1969], No. 5159/69. Heading B1E. [Also in Divisions C3 and C5] Catalyst compositions comprising (a) a silica, alumina or silica-alumina carrier to which is banded through oxygen atoms the transition metal component of an "active transition metal" / "active ligand" combination, wherein "active ligand" is defined as a phosphine or #-diketene and "active transition metal" is defined as a transition metal which forms complexes with phosphines and #-diketenes which are active for polymerisation of olefins, (b) an alkyl aluminium compound, are prepared by carrying out under substantially anhydrous conditions the successive steps of reacting silica, alumina or silica-alumina with a halide of an "active transition metal", reacting the carrier-halide reaction product with an "active ligand" and bringing the reaction product into contact with an aluminium alkyl. The transition metal is preferably nickel and the halide thereof NiCl 2 . The "active ligand" is preferably triphenyl phosphine, tributyl phosphine and acetyl acetone and the aluminium alkyl is preferably Al(C 2 H 5 ) 3  or Al(C 2 H 5 )Cl 2 .
Patent GB-1256928-A (GB)
IPC: C23C2/38
Filed: 1969-03-07
Abstract: 1,256,928. Coating by hot dipping. AUSTRALIAN WIRE INDUSTRIES PTY., Ltd. March 7, 1969 [March 8, 1968], No. 12286/69. Heading C7F. A wire 10 is galvanized by passing it through a bath of molten zinc and then upwardly through an open ended chamber containing granules 13 of e.g. gravel and having an opening 20 for supplying a non-oxidising gas, e.g. liquid petroleum gas, blast furnace gas, annealing furnace gas or coke oven gas containing hydrogen sulphide. The S.G. of the granules is 2À0 to 4À5 and their size from to “ inch. The chamber has detachable plates 12a, 12b to allow the granules to be renewed. Several wires may be galvanized simultaneously.
Patent GB-1257773-A (GB)
IPC: B60P1/08
Filed: 1967-09-28
Abstract: 1,257,773. Tipping vehicle. C. M. STOCKIL. 30 Dec., 1968 [28 Sept., 1967], No. 44190/67. Heading B7B. A trailer has a body 14 which is tipped by means of a telescopic drawbar 2, 3 connected to the axle 8 of the body and telescopic links 9, 10, 11 pivotally connected to the body and to the front element 2 of the drawbar and being inclined upwardly and rearwardly. The body 14 is supported in its horizontal position on a bracket 23. To tip the body, lever 20 is used to brake wheels 21 and lever 19 to remove locking pin 16 from aligned apertures in elements 2, 3. Tractor 6 is then reversed and as the drawbar telescopes inwardly the body 14 is lifted by collapsed link 11 and then successively by links 10, 9.
Patent GB-1264406-A (GB)
IPC: G03G15/26
Filed: 1969-05-21
Abstract: 1,264,406. Electro-photographic apparatus. RANK XEROX Ltd. May 21, 1969 [May 24, 1968], No.26003/69. Heading G2H. A document D, to be copied, is placed face downwards on a transparent platen P illuminated by lamps L flashed on by a control, for a very short period, to project a full frame image on to a moving selenium belt 12 at an exposure station A. Light from the document is projected by a lens 30 and reflected by mirrors 36 and 40. A corona discharge device 13 charges the belt 12 uniformly the charge being discharged imagewise at station and the resulting latent electrostatic image is developed at station B. The developed image is transferred to copy sheets at station C, the copysheets being fed by feed mechanisms 18 and 16 to a fuser 21. The belt 12 is cleaned by a corona device 24 and cleaning assembly having a brush and lamp to dissipate residual charge.
Patent GB-1266690-A (GB)
IPC: F02P5/06
Filed: 1968-08-22
Abstract: 1,266,690. Mounting cams on shafts. JOSEPH LUCAS (INDUSTRIES) Ltd. 25 July, 1969 [22 Aug., 1968], No. 40175/68. Heading F2U. [Also in Divisions F1 and H1] In an ignition distributer including a hollow cam-shaft 12, mounted on and rotatable with the shaft 11 driven by the engine to operate a contact breaker, cam-shaft 12 being moved angularly relative to driven shaft 11 by a centrifugal mechanism to vary the ignition timing, an annular chamber is defined between cam-shaft 12 and driven shaft 11 and means 14 is positioned within the chamber engaging driven shaft 11 and cam-shaft 12 to damp angular movement of cam-shaft 12 relative to driven shaft 11, while permitting limited angular movement of cam-shaft 12 under the action of the centrifugal mechanism. As shown, means 14 is in the form of a strip of spring steel the ends of which engage the inner surface of cam-shaft 12 and the mid-region of which is flexed to engage the circumference of a reduced portion 13 of shaft 11, so that friction between portion 13 and spring 14 damps angular oscillation of camshaft 12 relative to shaft 11. The purpose is to minimize the generation of noise in the centrifugal mechanism.
Patent GB-1288890-A (GB)
IPC: B41J19/64
Filed: 1971-05-07
Abstract: 1288890 Printers INTERNATIONAL BUSINESS MACHINES CORP 7 May 1971 [30 June 1970] 13618/71 Heading G4H Apparatus for printing a text in response to coded signals representative of the text, comprises a printer having margin setting means for defining left and right margins, and a measure seek circuit operable to cause the printer to escape without printing to the right margin, the number of units of escapement during this escapement being counted and supplied to justifying means which also receives the coded signals representative of the text and controls the printer to print the justified text so as to have a line length which is in accordance with the count supplied by the counter. The measure seek circuit is caused to operate by a "margin seek" signal from a manual panel or a "tab code" or "index return code" signal from a record reader also supplying the coded text signals. After obtaining the count above, the printer carriage returns to the left margin except in the "tab code" case. In the "tab code" case, the carriage is backspaced with decrementing of the counter until this reaches zero.
Patent GB-1289794-A (GB)
IPC: A47F7/17
Filed: 1971-04-19
Abstract: 1289794 Stands displaying rolls of material I SCHNEIDER [trading as JOH FRIEDR SCHNEIDER] 19 April 1971 [31 July 1970] 22323/71 Heading A4T Apparatus displaying rolls of material comprises a rectangular frame 1 rotatably mounting two endless link chains 2 supporting the rolls therebetween, each roll having a shaft 4a secured at one end to a first drive means, e.g. disc 4b having a peripheral friction lining. A carriage 6 is displaceable by handle 10 and pin and slot connections 6a, 6b on a substantially horizontal guide 5 on the frame and carries a second similar drive means 8c driven via reduction gearing 8a from motor 8. On rotating the chains by a motor a given roll is brought to the position 4a and the carriage moved forward to engage the two drive discs 4b, 8c against return spring 7 so that spring 12 actuates switch 11 for motor 8, the direction of rotation of the roll for unwinding or winding up being determined by a front manual switch. The carriage may be displaced by a cable connected to a hand lever or foot pedal. Guide 9 counteracts the pressure of the carriage on the chain.
Patent GB-1295209-A (GB)
IPC: C07D243/16
Filed: 1971-10-25
Abstract: 1295209 Benzodiazepines ARZNEIMITTELWERK DRESDEN VEB 25 Oct 1971 49460/71 Heading C2C Compounds of the general formula (R 1 =halogen ; R 2 =H, C 1-7  alkyl) are prepared by ring-closing a compound of the formula with a polyphosphoric acid ester.
Patent GB-1295357-A (GB)
IPC: H01P1/195
Filed: 1970-03-20
Abstract: 1295357 Gyromagnetic phase-shifters RCA CORPORATION 20 March 1970 [27 March 1969] 13571/70 Heading H1W The magnetizing wire or wires 24, 25 of a waveguide latching gyromagnetic phase-shifter are surrounded by a conductive spiral 35. This prevents propagation of spurious wave modes on the magnetizing wires. The phase-shifter is of the type using an elongated toroid 20 of gyromagnetic material having a core of dielectric material (e.g. barium titanate) within which the magnetizing wires are embedded. The toroid is arranged on the axis of a rectangular waveguide 10. The wires drive the toroid to desired states of remanent magnetization when pulsed from sources 25, 26.
Patent GB-1297545-A (GB)
IPC: G01S15/89
Filed: 1970-09-30
Abstract: 1297545 Side-looking sonar; transducers WESTINGHOUSE ELECTRIC CORP 30 Sept 1970 [17 Oct 1969] 46422/70 Headings H4D and H4J] A side looking sonar apparatus comprises an elongate transmitter only transucer means and two receiver only transducer means situated near to each end of the transmitter means and all the transducing means are operable at the same frequency. Transducer 30 Fig. 5 has a radiation pattern at any particular point on the line of focus equal to where L = length of the transducer; # = wave - length of transmitted waves; α = angular displacement from the line of focus; R α  = ratio of sound pressure at point displaced α from the line of focus to sound pressure at point on the line of focus. The receiving transducers 34, 35 have a reception pattern The combination of those two patterns produces a beam of approximately 40% less width than the use of transducer 30 as receiver and transmitter, Fig. 7. The transducers are used in a known recording system for recording sea-bed depth on magntic tape storage crt or helicalwire/electrosensitive paper recorders.
Patent GB-1308054-A (GB)
Title: Filtration
IPC: B01D29/00
Filed: 1970-07-01
Abstract: 1308054 Separating liquid from solids ROSE DOWNS & THOMPSON Ltd 24 June 1971 [1 July 1970] 31840/70 Heading B1D Slurry to be separated, for example a mixture of crystallised wax and oil produced by chilling the oil, is delivered through inlet 15 and alowed to settle in chamber 12, after which a displacement liquid such as water, denser than both constituents of the slurry, is delivered through inlet 14 and displaces the wax and oil upwards, the wax being retained against a filter 13 of wire mesh, cloth or wedge wire. The water displaces the oil from the wax, oil and water being discharged through outlet 18 to a settling tank, and chamber 12 is then drained of water via outlet 16. A fluid, in the example steam, is delivered through inlet 20 to remove the wax from filter 13 through outlet 17 for subsequent separation from the fluid. In the example the steam melts the wax, but the solid phase of the slurry could be discharged as a solid. The chamber 12 is cooled for the next cycle by passing chilled water from 14 to 18. A plurality of chambers 12 may operate in sequence to provide continuous separation.
Patent GB-1310878-A (GB)
Title: Phosphoric acid and salts thereof
IPC: C05B7/00
Filed: 1969-05-23
Abstract: 1310878 Sequestered wet process phosphoric acid and ammonium salt FISONS Ltd 21 May 1970 [23 May 1969] 26528/69 Headings C1A and C1B A process for preparing a sequestered phosphoric acid or salt thereof comprises removing water from an initially acidic mixture of pH < 2 containing phosphate ions and nitrate ions to give a phosphoric acid or salt having (a) 0À01 to 3 molar proportions of nitrate ions per molar proportion of P 2 O 5  ; and (b) a free H 2 O : P 2 O 5  weight ratio of less than 0À1 : 1. The product may be derived from a wet process phosphoric acid by removing the water at 120-200‹ C. to give a mixture in which 1-70% of the P 2 O 5  is in the form of polyphosphates. The water is removed by boiling or by passing hot air or other inert gases through the mixture. The phosphate in the initial acidic mixture may be an ammonium phosphate (possibly formed in situ by ammoniation). If required the sequestered product may be treated with ammonia. The product is suitable as a liquid fertilizer, for which purpose urea, KC1, KNO 3 , K 2 SO 1  and/or trace elements may be added.
Patent GB-1316902-A (GB)
Title: Microwave heating
IPC: C04B35/03
Filed: 1971-04-28
Abstract: 1316902 Basic refractories DOLOMITE BRICK CORP OF AMERICA 28 April 1971 11984/71 Heading ClJ Basic refractory aggregate is mixed with a liquid H.C. containing binder at room temperature, the mix shaped and then tempered by heating to 400-700‹ F. by microwave radiation of frequency 900-25,000 megacycles per sec. The aggregate can be mixed with combinations of a petroleum H.C. resin, carbon, pitch, a wax dissolved in oil, and fuel oil. Dolomite, periclase, magnesite and their mixtures are specified. The microwave tempering can be followed by other heating methods.
Patent GB-1326159-A (GB)
Title: Headgear structure
IPC: A42B3/10
Filed: 1971-10-28
Abstract: 1326159 Helmet with earcups GENTEX CORP 28 Oct 1971 [12 Nov 1970] 46829]72 Divided out of 1326158 Heading A3V The subject matter of this Specification is substantially the same as that described in Specification 1,326,158, but the claims are concerned with the impact-resistant structure of the headgear assembly.
Patent GB-1333556-A (GB)
Title: Internal combustion engines
IPC: F02D41/00
Filed: 1969-11-21
Abstract: 1333556 Treating I.C. engine charge; fuel injection systems JOSEPH LUCAS (INDUSTRIES) Ltd 20 Nov 1970 [21 Nov 1969 26 Feb 1970] 57186/69 and 9472/70 Heading F1B [Also in Division G1] A valve for admitting air to the inlet manifold of an I.C. engine during over-run is operated by a solenoid 12, Fig. 2, which is energized from a circuit which comprises a trigger device 30, e.g., a contact assembly driven by the engine, which feeds trigger pulses at a rate proportional to engine speed to a diode pump 31 producing a D. C. voltage proportional to engine speed. This voltage is fed via an emitter follower 32 and a throttle switch 33 which is closed only when the engine throttle valve is closed, to a Schmitt trigger 34. An engine over-run, i.e., when the switch 33 is closed and the D.C. voltage is above a chosen level, the Schmitt trigger 34 operates a transistor switch 35 to energize the solenoid 12 and thereby open the air valve. The transistor switch 35 may be a monostable multi-vibrator in which the period of the unstable state is one or two seconds, so that the air valve is opened only for this period after the beginning of over-run. All the fuel injection valves may be opened simultaneously at the end of over-run to re-establish a film of fuel on the wall of the inlet manifold. For this purpose, a monostable multi-vibrator 36 is triggered by the Schmitt trigger so as to produce energizing pulses which are fed via amplifiers to the injector valves when the throttle switch 33 is re-opened or when the engine speed falls below the chosen level. Alternatively, in order that the multi-vibrator 36 is triggered only when the throttle switch 33 is reopened, it may be triggered either directly from the switch 33 or via a further Schmitt trigger having a triggering level corresponding to a lower engine speed, e.g., at or just below idling speed. Fig. 3 shows an arrangement in which two groups 41, 42 of electromagnetic fuel valves are operated during alternate periods of time by respective pulse generators 43, 44 which are triggered by respective trigger switches 49, 50 operated at a rate dependent on engine speed, the pulse duration being controlled as a function of engine speed and inlet manifold pressure by a signal V 1  and as a function of engine acceleration and engine water temperature by a signal V 2 . A control circuit 53 generally similar to that shown in Fig. 2 operates during over-run to cause admission of air to the inlet manifold and to provide outputs on leads 54, 55 to inhibit the outputs from the pulse generators 43, 44. When the throttle valve is opened after over-run or when the engine speed falls towards the idling speed, the circuit 53 provides output pulses on leads 56, 57 to energize both groups 41, 42 of injection valves simultaneously for a period of time determined by the duration of the unstable state of a monostable multi-vibrator forming a part of the circuit 53.
Patent GB-1333664-A (GB)
Title: Apparatus for gauging hot rolled products
IPC: G01B11/04
Filed: 1971-04-20
Abstract: 1333664 Investigating hot rolled products VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNO-KONSTRUKTORSKY INSTITUT METALLURGICHESKOGO MASHINOSTROENIA 20 April 1971 10107/71 Heading G1A In a device for investigating a hot rolled product 13 (e.g. hot sheet metal) a hermetically sealed housing 1 having glazed windows 3 with flange edges 4, encloses two photo-cells 2 and the housing 1 is itself enclosed within a water cooled chamber 5 which also has windows 6 with flange edges, the two sets of flanges defining a slot clearance 8 through which air from nozzle 9 is forced in order to form a cushion of air to protect the window 3 from the heat given out by the product. In the event of a failure and subsequent overheating a withdrawal mechanism 10 is activated by a jet pipe relay or an electric contact thermometer to pull the photo-cells out of the chamber 5. The photo-cells are also withdrawn for calibration with the aid of a hot rolled product simulator.
Patent GB-1336122-A (GB)
Title: Apparatus for treating the internal surface of a pipeline
IPC: B05C7/08
Filed: 1969-08-09
Abstract: 1336122 Repairing pipes LA R ROSS 4 Nov 1970 [9 Aug 1969] 39943/69 Heading F2P [Also in Division B2] A self-propelled pipe-line pig has pressure coating means for sealing pipe-line leaks or for coating the internal surface of a pipe-line and includes first and second selectively outwardly expandable members adapted to grip the pipeline internal surface, and means for moving the members relative to one another to produce a step-by-step motion of the pig. The pig comprises a central tube 10 bounded by expandable seals 20, 22 which grip the pipe-line inside surface. Seal 20 is fixed to the pig but seal 22 is axially slidable with respect to the pig. The pig is moved along the pipe-line by the following sequence. Seal 20 is expanded by air to grip the pipe-line and seal 22, retracted, slides forwardly towards seal 20 by fluid pressure (sealant or other fluid), pneumatically, or electronically; seal 20 is retracted, seal 22 is expanded and seal 20 moves away from seal 22 by similar means to that for seal 22. The sealant is contained by the chamber 25 between seals 20, 22 or in a separate chamber between two similar seals, in front of, or behind, chamber 25. Alternatively the sealant is sprayed on to the pipe-line internal surface by a spraying head propelled by the pig. A two-reactant sealant may be applied to the pipe-line internal surface from two such chambers, or two spraying heads, or a chamber plus a spraying head. A television camera or flow detecting device may be propelled by the pig. A test chamber, similar to chamber 25, may be carried by the pig, to measure pressure drop in the chamber to detect flows or junction locations.
Patent GB-1338697-A (GB)
Title: Diameter gauges
IPC: G01B3/34
Filed: 1972-03-29
Abstract: 1338697 Diameter gauge BRITISH GAS CORP 29 March 1972 [27 April 1971] 11673/71 Heading G1M A diameter gauge comprises a pair of members 1, 2 rigidly fixed relative to each other to define a tapering slot, at least one scale 13 being provided to indicate the diameter of an article placed in the slot so as to abut edges 3, 4. The slot may be V-shaped as shown, or of  a truncated V-shape. The members 1, 2 may be of steel and the scales carried by adhesive aluminium strips. The scales may be provided on one or both sides of the gauge and may be in inches or in millimetres. Other information may be carried by the members 1, 2.
Patent GB-1345101-A (GB)
Title: Instrument for measurement of dewpoints or partial water  vapour pressures
IPC: G01N25/68
Filed: 1972-01-21
Abstract: 1345101 Partial pressure measurement - determining dewpoint OMNIA (ENG) Ltd and N A CRUTCHLEY 21 Jan 1972 2888/72 Headings G1A G1S The partial water vapour pressure of a substance in a container 3 Fig.1, is determined by measuring the temperature of a thermo-electric Peltier-effect cooled dewpoint-sensing mirror 6 exposed to a jet of air in an enclosed air flow system which comprises a narrow bore tubular water vapour permeable membrane 2 immersed in container 3. The air is circulated by a pump 4, and the circuit includes a dryer 20 which may be by-passed by a valve 7. The deposit of water vapour on the mirror 6 is detected photoelectrically by lamp 12 and photo-cell 13 through light guides 10, 11. The system includes a second cell 17 providing a radiation reference, and the temperature of the mirror is maintained at the dewpoint by the photo-cell output. A thermister 21 indicates the temperature and thus the partial pressure. A second embodiment, Fig.2 (not shown), includes a pair of Peltier cooled mirrors together with their sensing systems and the partial pressures are measured before and after passing through the membrane. Chamber 3 may be a flow pipe in a process and the output may indicate the moisture content. The membrane may be in the form of a coiled micro-bore tube or panels of membrane material having an air space between them and bounded at their sides by metal.
Patent GB-1346424-A (GB)
Title: Warning lamps for road vehicles
IPC: B60Q3/04
Filed: 1970-06-09
Abstract: 1346424 Lamp JOSEPH LUCAS (INDUSTRIES) Ltd 1 July 1971 [9 June 1970 16 Oct 1970 26 Jan 1971] 27809/70 49186/70 and 3142/71 Heading F4R A warning lamp for mounting in a vehicle panel includes a nylon body 11 having members 15 to hold the body in the panel, grooves 16 to accommodate the tags 20 of a bulb holder 17 the holder being made of reflective zinc-plated steel and a lug 14 to aid location of the body, in the panel. A transparent acrylic disc 23 having lugs 22 is secured to the body 11 by engaging the lugs 22 with lugs 24 on the body. A spring washer 27 is provided in the lamp. In other embodiments the disc (42) has an integral sleeve (44) with feet (45) which engage lugs in the body (31), the spring washer is replaced by a helical spring (49) (Figs. 2 to 6, not shown) and the bulb (54) may be capless (Fig. 7, not shown).
Patent GB-1346574-A (GB)
IPC: F24C15/10
Filed: 1970-03-24
Abstract: 1346574 Electric hot plates BRITISH DOMESTIC APPLIANCES Ltd 19 April 1971 [24 March 1970] 14227/70 Heading H5H [Also in Division F4] A heating appliance comprises a heating unit having a transparent or translucent heating surface 1 which is illuminated by a light source 9 when the unit is energized. In Fig. 2 a glass ceramic heating surface 1 has a metal screen 6 coated with an insulating material 10 and a light bulb 9 illuminated when the resistance heating element 5 is energized. The screen may be replaced by an opaque coating on the lower surface of the plate 1 or by specially formed resistance mounting blocks of insulation 7, Figs. 3, 4, 5 (not shown). The coating alternatively may be of fluorescent material and the tungsten lamp 9 replaced by an ultra-violet lamp. The light source may be controlled by a thermostat or thermistor, so as to be energized at a particular temperature and to remain energized when the heating unit is switched off until the temperature drops to that value. The plate 1 may be indented, upper parts of its surface screened with opaque material and edge transmission of light through it may also be used. The temperature of the plate may be indicated by the intensity of the illumination or by various coloured lights. A timer (4) and various control knobs (3) are mounted on a heating appliance having four heating units mounted beneath a glass ceramic hob, Fig. 1 (not shown).